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Finding the Fourth Proportional to 12,459.61, 17,193.76 and 6,794.20

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Solution

The fourth proportional to 12,459.61, 17,193.76 and 6,794.20 is: 9,375.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.61 : 17,193.76 = 6,794.20 : x
  2. Step 2: Convert to fraction form
    12,459.61/17,193.76 = 6,794.20/x
  3. Step 3: Cross multiply
    12,459.61x = 17,193.76 × 6,794.20
  4. Step 4: Simplify right side
    12,459.61x = 116,817,844.19
  5. Step 5: Solve for x
    x = 116,817,844.19/12,459.61
  6. Step 6: Final answer
    x = 9,375.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.